* Move docs dependencies out of test-requirements.txt
* Eliminate python version specific test (py35)
* Re-order default envlist to shorten feedback cycle
* Minor whitespace changes
* Simplify versions unit test
* Add /.cache to .gitignore
* Include tests directory in basic format requirements, but not flake8
* Fix sample noauth-api-paste.ini config
Change-Id: I440f5c2d988098287f9914449f7103735f832192